Wisconsin Administrative Code
Public Service Commission
Chapter PSC 113 - Service Rules For Electrical Utilities
Subchapter IX - Electric Meter Testing Programs and Record Requirements
Section PSC 113.0919 - Metering equipment records
Current through August 26, 2024
(1) METER TEST RECORDS.
NoteMeter test records need not be separately retained from meter history records provided that the meter test records are incorporated into the meter history records.
(2) METER HISTORY RECORDS.
(3) STATISTICAL SAMPLING SUMMARIES. Each utility authorized to test meters under the statistical sample testing plan of s. PSC 113.0921 shall submit to the commission, by April 15 of the following year, a summary of the statistical sample testing results for the prior calendar year. The summary shall include group and lot numbers; a description of meters in each lot; the number or meters in each lot; the number of meters sample tested in each lot; full load sample mean accuracy (x), estimated standard deviation (s) and total estimated percent defective (P); light load sample mean accuracy x, estimated standard deviation (s) and total estimated percent defective (P); projected annual rates of change for x, s and P at both full and light load analysis points; lots requiring testing and actual x, s and P data from meters where entire lot tests were required under the program; group and lot numbers; a description of meters in each lot and the number of meters in each lot for the succeeding test year.
(4) COMPUTERIZED METER RECORD SYSTEM. Utilities with more than 5,000 metered customers shall acquire or develop a computerized meter records system and use it for maintaining all required meter equipment records, scheduling and implementing all required meter testing and analyzing meter accuracy performance. The reporting system and software must be acceptable to the commission.